This is a hardware emulator you can run the real Multics software on. However the hardware in question was built specifically for Multics, so in that sense it's

This is a hardware emulator you can run the real Multics software on. However the hardware in question was built specifically for Multics, so in that sense it's emulating Multics hardware. This SO answer has a great take on the difference between simulation and emulation. I'd say a Virtual Machine emulates hardware: https://stackoverflow.com/questions/1584617/simulator-or-emulator-what-is-the-difference https://stackoverflow.com/questions/1584617/simulator-or-emu...